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14 April, 22:01

What type of bond is formed between hydrogen and nitrogen in ammonia (NH3) ? A. polar covalent B. ionic C. nonpolar covalent D. metallic

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  1. 14 April, 22:11
    0
    A. Polar covalent

    Explanation:

    The polarity of a bond depends on the electronegativity difference (ΔEN) between the bonded atoms.

    If the electronegativity difference between the atoms is between 0.4 and 1.7, the bond is polar covalent.

    For an N-H bond, ΔEN = |3.04-2.20| = 0.84

    So, the bond is polar covalent.

    B is wrong. A bond is ionic only if ΔEN > 1.6.

    C is wrong. A bond is nonpolar only if ΔEN < 0.4.

    D is wrong. N and H are not metals.
  2. 14 April, 22:51
    0
    The answer is A polar covalent
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